8X6J

The X-ray structure of N-terminal catalytic domain of Thermoplasma acidophilum tRNA methyltransferase Trm56 (Ta0931) in complex with S-adenosyl-L-methionine

Experimental procedure

Experimental method	SINGLE WAVELENGTH
Source type	SYNCHROTRON
Source details	SPRING-8 BEAMLINE BL41XU
Synchrotron site	SPring-8
Beamline	BL41XU
Temperature [K]	100
Detector technology	PIXEL
Collection date	2023-02-05
Detector	DECTRIS EIGER X 16M
Wavelength(s)	1.0
Spacegroup name	C 2 2 21
Unit cell lengths	46.700, 71.400, 86.990
Unit cell angles	90.00, 90.00, 90.00

Refinement procedure

Resolution	43.490 - 1.990
R-factor	0.18209
Rwork	0.180
R-free	0.22602
Structure solution method	MOLECULAR REPLACEMENT
Starting model (for MR)	2yy8
RMSD bond length	0.008
RMSD bond angle	1.607
Data reduction software	XDS
Data scaling software	XDS
Phasing software	PHASER
Refinement software	REFMAC (5.8.0352)

Data quality characteristics

	Overall	Inner shell	Outer shell
Low resolution limit [Å]	50.000	5.930	2.110
High resolution limit [Å]	1.990	4.210	1.990
Rmerge	0.250	0.098	0.761
Rmeas	0.261	0.103	0.794
Number of reflections	10269	723	1618
<I/σ(I)>	19.42
Completeness [%]	99.8
Redundancy	10.3
CC(1/2)	0.997	0.998	0.973

Crystallization Conditions

crystal ID	method	pH	temperature	details
1	VAPOR DIFFUSION, HANGING DROP	5.5	293	PEG 3350, Bis-Tris